Mehanika's products - Vibrating screens - Crushers - Feeders - Send washers - Belt conveyors - Storage bin and silo - Proccessing plants - Welded constructions
Vibrating screens
Vibrating screens (eng. Vibrating screens, German Rüttelsieb) are machines that use mechanical vibrations to separate materials by granulation, into fractions. The number of fractions depends on the number of floors of the vibro sieve. Our production program includes screens that can have from one to four floors. They can be used for dry sowing or sowing with washing, with the addition of a washing system. The vibrating screen itself consists of a drive that causes mechanical vibrations, sieving surfaces that separate the material into fractions and a frame that serves as a support for the sifting surfaces and a transport path for vibrations from the drive to the sifting surfaces. The change in the sharpness of the sieve (amplitude) is done by changing the weight of the flywheel masses (imbalance). Depending on their position in the technological line, they are divided into primary or secondary vibrating screens. They can also be used to separate water from materials using "rhyme" nets.

The sieving surfaces of the vibrating screen can be made in different ways and from different materials, depending on the material being sown. Braided steel wire nets with square or rectangular openings are most often used. If highly abrasive material or material of higher granulation is sown, sifting surfaces made of perforated steel sheet with increased wear resistance can be used. Average surfaces with the longest service life and the highest resistance to wear are made of synthetic polymers - polyurethanes. Polyurethane is an extremely strong and extremely resistant material, which allows it to more easily absorb the shocks of the material. With the use of polyurethane screening surfaces, the noise level generated by vibrating screens is significantly reduced.
Vibro grate
Vibro grate is a machine that uses vibrations to classify and purify materials in the technological process of crushing and separation. Since it is used to separate large pieces, the average surface is a grid made of wear-resistant material. The distance between the grids determines the grain size in the fractions. In the process of separating natural gravel, they are used to separate grains with a size larger than the maximum allowed (iberlauf), and in the process of crushing, they are used to separate tailings. The sieving that precedes the crushers relieves them of the incoming ore mass, which increases the capacity of the crushing department. They can also be made as two-storey, where the upper floor is a lattice, and the lower floor is made of wire mesh and serves to separate another fraction.

In the technological line, they are located behind the bunker, and in front of the secondary sieves or mills.
Vibrating screens - family VS
Vibrating superresonant screens - type VS are intended for final sieving of material. Sifting can be dry or wet, with the addition of a washing system. Steel mesh is most often used for the production of sieved surfaces, but at the customer's request they can also be made in other ways (from perforated sheet metal or from wear-resistant plastics - polyurethane). We can also protect other surfaces exposed to wear if the sieve is used for sieving aggressive materials. The vibro screen is driven by a belt drive.

Considering the large number of possible variants of vibro screens and the possibility of making screens completely according to the customer's request, contact us to help you choose
Mehanika as a company independent of the Aleksinac coal mines first started operating in 1976. Based on the experience and knowledge gained in the maintenance of equipment for coal mines, in 1980 it began a more intensive development in the manufacture of machines and complete plants. Since then, a large number of machines with their subtypes have been adopted. Along with intensive development, machinery and equipment are also exported to other countries. We are able to offer you plants with a capacity of 20 m3 / h to 100 m3 / h. If you need any additional information, do not hesitate to contact us.
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